Zhao Hai had never thought of persuading the underworld God temple's undead army to surrender. These undead were not bound by any sort of contract. They were completely controlled by some sort of faith. It would be extremely difficult to persuade such an Army to surrender.
Zhao Hai was very clear about this, so he had no intention of persuading these troops to surrender. Instead, he wanted to conquer them with force. After all, he had the strength now and was not afraid of their resistance.
Moreover, Zhao Hai was not worried that the underworld God Hall's undead would be able to cause much trouble. Even if the underworld God Hall's undead managed to escape, they would soon learn that underworld God city had been occupied and that the underworld God Hall had been destroyed. Zhao Hai believed that this news would be an extremely huge blow to the Army.
